本实验尝试使用尿素水溶液浸泡杉木根后再用水蒸气法提取杉木根精油。
In our experiment, essential oil was attempted to extract from fir immersed in urea solution.
采用微波辐照技术从山苍子中提取制备柠檬醛,使山苍子精油的提取率较传统的直接水蒸气蒸馏法平均提高36.5%以上。
By microwave irradiation, the citral was obtained from Litea cubeba fruits, the yield was risen in average 36.5% than by traditional distillation in a current of steam.
方法:分别采用水蒸气蒸馏法、醇提法、水提醇沉法制成口服液;
Methods:Oral liquid was made by steam distillation, alcohol abstraction method, water abstraction and alcohol precipitation.
以纸浆黑液为催化剂,用热天平的等温法研究高变质无烟煤常压纯水蒸气催化气化反应。
Using black liquor of paper pulp plant as catalyst, the steam gasification of high metamorphosed anthracites was investigated by isothermal thermo-gravimetric analysis under ambient pressure.
采用水蒸气蒸馏法研究了中国和日本各地的33份紫苏试材芳香油的含量。
The aromatic oil in 33 samples of Perilla collected from China and Japan is studied by using steam distillation.
目的探索水蒸气蒸馏法提取大蒜油的最佳工艺。
OBJECTIVE To establish the optimum conditions for the vapour distillation of the garlic oil.
方法采用水蒸气蒸馏法从枳壳中提取挥发油。
Methods The volatile oil was obtained from PPFA by steam distillation.
采用水蒸气蒸馏法提取木粉中的精油;
The essential oil from wood was extracted by steam distillation.
采用原子蒸气束激光诱导荧光法测量钆原子的第一激发态的同位素位移及超精细结构、原子跃迁自发辐射的分支比和原子蒸气束的多普勒宽度。
The isotope shifts, hyperfine structure, spontaneous emission branch ratio of the first excited level and Doppler width of the atom vapor beam were measured using laser induced fluorescence.
采用水蒸气蒸馏法提取精制香椒子中的挥发油。
The volatile oils of Zanthoxylum schinifolium were extracted by water vapor distillation.
根据最小自由能法原理,推导出一维迭代法,计算硫蒸气中各分子态组分的平衡分区与组成。
According to the minimum Gibbs energy principle, a calculation method for equilibrium partial pressure and composition of molecule component has been derived.
本文用蒸气压法研究了纯锌在真空中蒸发的基本规律。
水蒸气蒸馏法、有机溶剂萃取法和超临界流体萃取法。
The extraction methods are water extraction, organic solvent extraction and supercritical fluid extraction.
结论:直接水蒸气蒸馏法可以作为实验室提取丹皮酚的最佳方法。
Conclusion: Steam distillation is the most proper extraction method of paeonol from cortex moutan.
本工作用重量法测量了水蒸气和液体水在十一种高聚物薄膜中的透过速率。
The permeability constants of both liquid water and water vapour through eleven polymer films have been measured at three temperatures by weighing method.
因此,本文以石油渣油为原料,通过水蒸气活化、化学活化和类模板法等制备成多孔炭材料。
Thus, we studied the preparation of porous carbons using oil residues as raw materials by traditional steam activation, NaOH activation and template-like method respectively.
通过正交试验研究了水蒸气蒸馏法提取六安地产生姜精油的工艺。
Technology of refined oil of ginger in Lu 'an extracted by steam distillation was studied on orthogonal experiment in this paper.
采用水蒸气蒸馏法从川桂叶和嫩枝中提取挥发油,出油率分别为1。
The volatile oil was extracted from Cinnamomum wilsonii leaf and twig with the steam distillation and the yield was 1.
用常规水蒸气蒸馏法提取杜克蓝莓果实中的挥发油,并用气相色谱-质谱法分析了其化学成分。
The essential constituents from duke blueberry fruits were extracted by steam distillation method and the essential oil obtained was analyzed by gas chromatography-mass spectrometry.
用水蒸气蒸馏法提取了赤桉叶和本泌桉叶精油,通过气相色谱-质谱(GC-MS)联用法分析鉴定了二者的化学成分及质量分数。
The essential oils of leaves from Eucalyptus camaldulensis and Eucalyptus benthami were extracted by steam distillation and their chemical constituents were determined by GC-MS method.
目的了解水蒸气蒸馏法提取中药挥发油存在的问题及解决方法。
ObjectiveTo understand the questions and solutions in extraction volatile oils from the traditional Chinese medicine by vapour distillation.
在恒温恒湿条件下,湿杯法检测涂料游离涂膜的透汽性,从而建立了一种简捷实用的水蒸气透过率检测方法。
Under the condition of constant temperature and constant humidity, the water vapor penetration rate of the separate coatings film is tested by the wet cup method that is simple and practical.
结果数字编号法弥补了灭菌手术包内压力蒸气灭菌化学指示卡粘贴法的不足,使其更方便、适用。
Results Digital coding can make up the deficiency of chemical indicator strip, and it is a simple and feasible method in practice.
目的:比较固相微萃取法与水蒸气蒸馏法提取蜘蛛香挥发油成分的差异。
OBJECTIVE: To evaluate the solid-phase microextraction versus Steam distillation in the extraction of volatile oil in Jatamans Valeriana Rhizome.
本文是围绕水蒸气蒸馏连续法生产松香和松节油过程中实现对蒸馏塔的控制问题而展开的。
This thesis is developed on an existing problem for the control of distill column in the process of rosin and turpentine production by continuous vapor distillation.
采用水蒸气蒸馏法从巴旦木杏仁中提取挥性化学成分,用气相色谱-质谱法对化学成分进行鉴定。
The volatile chemical components extracted from the almond of Prunus amygdalus Stokes was abstracted by steam-stilling and analyzed by GC-MS method.
采用水蒸气蒸馏法从杜梨花中提取挥发油,用气相色谱-质谱法对化学成分进行鉴定。
The essential oil from the flowers of Pyrus betulaefolia Bunge was abstracted by steam-stilling and analyzed by capillary GC-MS method.
采用水蒸气蒸馏法从杜梨花中提取挥发油,用气相色谱-质谱法对化学成分进行鉴定。
The essential oil from the flowers of Pyrus betulaefolia Bunge was abstracted by steam-stilling and analyzed by capillary GC-MS method.
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